Home / 258,904.64-388,366.52-116,722.12

Finding the Fourth Proportional to 258,904.64, 388,366.52 and 116,722.12

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Solution

The fourth proportional to 258,904.64, 388,366.52 and 116,722.12 is: 175,087.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,904.64 : 388,366.52 = 116,722.12 : x
  2. Step 2: Convert to fraction form
    258,904.64/388,366.52 = 116,722.12/x
  3. Step 3: Cross multiply
    258,904.64x = 388,366.52 × 116,722.12
  4. Step 4: Simplify right side
    258,904.64x = 45,330,963,551.42
  5. Step 5: Solve for x
    x = 45,330,963,551.42/258,904.64
  6. Step 6: Final answer
    x = 175,087.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.